TY - JOUR ID - 1375 TI - Monitoring the concentration of 238U, 232Th, 40K and 137Cs of soil in Anarak-Khour district, Central Iran JO - Caspian Journal of Environmental Sciences JA - CJES LA - en SN - 1735-3033 AU - Ehsanpour, E. AU - Abdi, M.R. AU - Mostajaboddavati, M. AU - Bagheri, H. AD - University of Isfahan Y1 - 2015 PY - 2015 VL - 13 IS - 3 SP - 247 EP - 257 KW - Radioactivity concentration KW - Gamma spectrometry KW - Soil KW - Anarak-khour DO - N2 - This study was conducted to determine the radioactivity concentration in soil samples of Anarak-Khour district located at central Iran. 48 soil samples from a depth of 10-15 cm were taken from seven different sites for monitoring. The radioactivity concentration of 238U, 232Th, 137Cs and 40K in soil samples was determined, using a high resolution (HPGe detector, p-type) γ-spectrometry by detectors with 55% and 38.5% relative efficiencies. The results showed that the radioactivity concentration ranged from 9.91 ± 0.11 to 4479.95 ± 0.15 Bq.kg-1 for 238U, from 5.95 ± 0.14 to 389.72 ± 0.10 Bq.kg-1 for 232Th, ≤MDA to 8.89 ± 0.13 Bq.kg-1 for 137Cs and from 123.18 ± 0.27 to 5201.42 ± 0.27 Bq.kg-1 for 40K in soil samples. The calculated internal and external hazard indices were more than 1 in some sites which showed a high dose for this area. These results could be used as a database of this area because it might be used as a nuclear waste site in the future. UR - https://cjes.guilan.ac.ir/article_1375.html L1 - https://cjes.guilan.ac.ir/article_1375_69f313c720ef907cd1586feaf4ee0180.pdf ER -